Wash and slice the oranges.
Bring 2 cups water to a boil, add orange slices, then turn down to a simmer.
Simmer for 10 minutes, then remove slices. Do in batches.
Pour out the water and replace with fresh 2 cups of water.
Add 2 cups of sugar to the fresh water and bring to a boil, stir to dissolve the sugar.
Turn down to a simmer and add slices in batches.
Simmer slices for 10 to 15 minutes until the whites in the slices become more translucent looking.
Place finished slices on paper towels and allow to dry out.
Set aside for 24 hours.
Dip slices into sugar and coat well.